Security update for the Linux Kernel (Live Patch 10 for SLE 15 SP3) SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2022:0984-1 Final 1 1 2022-03-29T09:39:53Z current 2022-03-29T09:39:53Z 2022-03-29T09:39:53Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for the Linux Kernel (Live Patch 10 for SLE 15 SP3) This update for the Linux Kernel 5.3.18-59_37 fixes several issues. The following security issues were fixed: - CVE-2022-25636: Fixed an issue which allowed a local users to gain privileges because of a heap out-of-bounds write in nf_dup_netdev.c, related to nf_tables_offload (bsc#1196299). - CVE-2021-4001: Fixed a race condition when the EBPF map is frozen (bsc#1192990). - CVE-2022-0492: Fixed a privilege escalation related to cgroups v1 release_agent feature, which allowed bypassing namespace isolation unexpectedly (bsc#1195543). The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). SUSE-2022-984,SUSE-SLE-Module-Live-Patching-15-SP3-2022-1016,SUSE-SLE-Module-Live-Patching-15-SP3-2022-980,SUSE-SLE-Module-Live-Patching-15-SP3-2022-982,SUSE-SLE-Module-Live-Patching-15-SP3-2022-983,SUSE-SLE-Module-Live-Patching-15-SP3-2022-984 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://www.suse.com/support/update/announcement/2022/suse-su-20220984-1/ Link for SUSE-SU-2022:0984-1 https://lists.suse.com/pipermail/sle-security-updates/2022-March/010553.html E-Mail link for SUSE-SU-2022:0984-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1192991 SUSE Bug 1192991 https://bugzilla.suse.com/1195908 SUSE Bug 1195908 https://bugzilla.suse.com/1196301 SUSE Bug 1196301 https://www.suse.com/security/cve/CVE-2021-4001/ SUSE CVE CVE-2021-4001 page https://www.suse.com/security/cve/CVE-2022-0492/ SUSE CVE CVE-2022-0492 page https://www.suse.com/security/cve/CVE-2022-25636/ SUSE CVE CVE-2022-25636 page SUSE Linux Enterprise Live Patching 15 SP3 kernel-livepatch-5_3_18-59_37-default-5-150300.2.1 kernel-livepatch-5_3_18-59_37-preempt-5-150300.2.1 kernel-livepatch-5_3_18-59_34-default-6-150300.2.1 kernel-livepatch-5_3_18-59_19-default-9-150300.2.1 kernel-livepatch-5_3_18-59_24-default-7-150300.2.1 kernel-livepatch-5_3_18-59_27-default-7-150300.2.1 kernel-livepatch-5_3_18-59_34-default-6-150300.2.1 as a component of SUSE Linux Enterprise Live Patching 15 SP3 kernel-livepatch-5_3_18-59_19-default-9-150300.2.1 as a component of SUSE Linux Enterprise Live Patching 15 SP3 kernel-livepatch-5_3_18-59_24-default-7-150300.2.1 as a component of SUSE Linux Enterprise Live Patching 15 SP3 kernel-livepatch-5_3_18-59_27-default-7-150300.2.1 as a component of SUSE Linux Enterprise Live Patching 15 SP3 kernel-livepatch-5_3_18-59_37-default-5-150300.2.1 as a component of SUSE Linux Enterprise Live Patching 15 SP3 A race condition was found in the Linux kernel's ebpf verifier between bpf_map_update_elem and bpf_map_freeze due to a missing lock in kernel/bpf/syscall.c. In this flaw, a local user with a special privilege (cap_sys_admin or cap_bpf) can modify the frozen mapped address space. This flaw affects kernel versions prior to 5.16 rc2. CVE-2021-4001 SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-59_19-default-9-150300.2.1 SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-59_24-default-7-150300.2.1 SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-59_27-default-7-150300.2.1 SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-59_34-default-6-150300.2.1 SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-59_37-default-5-150300.2.1 important 4.7 AV:L/AC:M/Au:N/C:N/I:C/A:N To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2022/suse-su-20220984-1/ https://www.suse.com/security/cve/CVE-2021-4001.html CVE-2021-4001 https://bugzilla.suse.com/1192990 SUSE Bug 1192990 https://bugzilla.suse.com/1192991 SUSE Bug 1192991 A vulnerability was found in the Linux kernel's cgroup_release_agent_write in the kernel/cgroup/cgroup-v1.c function. This flaw, under certain circumstances, allows the use of the cgroups v1 release_agent feature to escalate privileges and bypass the namespace isolation unexpectedly. CVE-2022-0492 SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-59_19-default-9-150300.2.1 SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-59_24-default-7-150300.2.1 SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-59_27-default-7-150300.2.1 SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-59_34-default-6-150300.2.1 SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-59_37-default-5-150300.2.1 important 6.9 AV:L/AC:M/Au:N/C:C/I:C/A:C To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2022/suse-su-20220984-1/ https://www.suse.com/security/cve/CVE-2022-0492.html CVE-2022-0492 https://bugzilla.suse.com/1195543 SUSE Bug 1195543 https://bugzilla.suse.com/1195908 SUSE Bug 1195908 https://bugzilla.suse.com/1196612 SUSE Bug 1196612 https://bugzilla.suse.com/1196776 SUSE Bug 1196776 https://bugzilla.suse.com/1198615 SUSE Bug 1198615 https://bugzilla.suse.com/1199255 SUSE Bug 1199255 https://bugzilla.suse.com/1199615 SUSE Bug 1199615 https://bugzilla.suse.com/1200084 SUSE Bug 1200084 net/netfilter/nf_dup_netdev.c in the Linux kernel 5.4 through 5.6.10 allows local users to gain privileges because of a heap out-of-bounds write. This is related to nf_tables_offload. CVE-2022-25636 SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-59_19-default-9-150300.2.1 SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-59_24-default-7-150300.2.1 SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-59_27-default-7-150300.2.1 SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-59_34-default-6-150300.2.1 SUSE Linux Enterprise Live Patching 15 SP3:kernel-livepatch-5_3_18-59_37-default-5-150300.2.1 important 6.9 AV:L/AC:M/Au:N/C:C/I:C/A:C To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2022/suse-su-20220984-1/ https://www.suse.com/security/cve/CVE-2022-25636.html CVE-2022-25636 https://bugzilla.suse.com/1196299 SUSE Bug 1196299 https://bugzilla.suse.com/1196301 SUSE Bug 1196301